There were a pair of nasty mistakes in the previous release of PS3 Video 9. While they weren't software bugs per se, they likely resulted in causing all your video conversions to fail if you used the default settings

Remember that PimpStreamer DLNA by homebrew developer DickyDick1969 which allows users to share files across DLNA-equipped systems such as the Sony PlayStation 3? A new build is now available to bring PimpStreamer DLNA to version 1